package com.example.yls.demoa;

import android.content.Intent;
import android.content.IntentFilter;
import android.net.sip.SipAudioCall;
import android.net.sip.SipSession;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import org.w3c.dom.Text;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity
implements IOnUpdateListener{
    private TextView txtTime;
    private MyReceiver receiver;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        receiver =new MyReceiver(MainActivity.this);
        IntentFilter filter=new IntentFilter();
        filter.addAction(Intent.ACTION_TIME_CHANGED);
        filter.addAction(Intent.ACTION_TIME_TICK);
        filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
        registerReceiver(receiver,filter);

        txtTime=findViewById(R.id.txt_time);
        updateTime();
    }
    @Override
    public void updateTime(){
        Calendar calendar=Calendar.getInstance();
        int hour =calendar.get(Calendar.HOUR);
        int min =calendar.get(Calendar.MINUTE);
        txtTime.setText(hour + ":" + min);
    }
    @Override
    protected void onDestroy(){
        unregisterReceiver(receiver);
        super.onDestroy();
    }
}
